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  • Users: thekingpin
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  1. thekingpin

    Ward Leonard Control of DC Motor

    Hi Guys, I have a rather old (circa 1930) mine winder that uses a Ward Leonard control system. The MG set comprises 2 generators to supply armature voltage control for the Winder motor. The smaller generator supplies voltage to the motor all the time whilst the larger only supplies voltage to...
  2. thekingpin

    Effect of Blown Primary Fuse on secondary voltage

    Recently I had a blown fuse on the primary of a DYn11 high voltage transformer. The motors connected to the secondary of the transformers burnt out due to the reduced voltage. I believe that the motors did not "single Phase" in the true sense of the phrase but suffered from a reduced and...

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